No precise information regarding the loss of the turbine propelled destroyer Cobra (length 213 feet seven and a half inches between perpendiculars, beam 20 feet six inches, draught 7 feet; displacement 375 tons, light) during contractor's trials held in the North Sea in mid-September 1901, was available at the time that The Engineer went to press. According to one report the Cobra had hit a rock, whilst another attributed her loss to an explosion.